A child who has started to speak in two-word phrases is probably in

A) Freud's oral stage.
B) Piaget's formal-operations stage.
C) Piaget's preoperational stage.
D) Freud's genital stage.

Preoperational Stage

A developmental stage in Piaget's theory, occurring from ages 2 to 7, where children are beginning to develop logical thought but are not yet capable of concrete reasoning.

Formal-Operations Stage

The fourth and final stage of Jean Piaget's theory of cognitive development, occurring from age 12 onwards, characterized by the ability to think abstractly and reason logically.

Oral Stage

A phase in Freud's psychosexual development theory during infancy where the mouth is the primary source of pleasure and exploration.